Having bananas at the speaker ends makes it difficult.
If you want to keep the biwire capability of the wires for later, I suggest swapping one of the speaker-end pairs (either one) of banana plugs with spades. Most binding posts will accept a spade and a banana plug with no problem.
Otherwise, if you're not planning to sell them and don't mind a little butchery, you can just clip the bananas, twist all the proper ends together and have a single "bare wire" connection.
You might even notice an improvement in sound when you get the connectors out of there. :)
If you want to keep the biwire capability of the wires for later, I suggest swapping one of the speaker-end pairs (either one) of banana plugs with spades. Most binding posts will accept a spade and a banana plug with no problem.
Otherwise, if you're not planning to sell them and don't mind a little butchery, you can just clip the bananas, twist all the proper ends together and have a single "bare wire" connection.
You might even notice an improvement in sound when you get the connectors out of there. :)